Best Space Games on Steam
Unlike generic lists, our strategy game recommendations use a rigorous analysis of Steam user reviews to identify and feature only the best, community-validated space games. For those who prefer not to search, lists of the most played, top deals and best free space games are available at the bottom of the page.
Filters & Lists
IRON REBELLION
Climb inside a colossal, crushing war machine, where every switch, lever, and round of ammunition is at your command. Physically interact with every support system and navigation stick as if you were truly in the cockpit. Customize and outfit your mech to outsmart and assert your superiority.
Creeper World IXE
The unstoppable alien force known as The Creeper has returned, devouring thousands of worlds in its path, and yours is next. Battle against the Creeper fluid in a groundbreaking pixel-level simulation to prove that humanity will rule the galaxy forever!
Astrometica
Astrometica is a space exploration and base-building survival game. After a catastrophic event, explore vast space, gather resources, build bases, and uncover cosmic mysteries. Use advanced technology, craft tools, and discover new blueprints to survive and thrive in the unknown.
Star Wars Outlaws
Experience the first-ever open world Star Wars™ game and explore distinct locations across the galaxy, both iconic and new. Risk it all as scoundrel Kay Vess, seeking freedom and the means to start a new life.
Rogue Command
Classic RTS gameplay fused with a modern roguelike. Shape your build each run by assembling an evolving arsenal of powerful units and facilities. Harvest resources, build out your base. Raise your army and call down orbital strikes to overcome the forces threatening your survival.
Deep Space Cache
Deep Space Cache is a short & simple semi-idle bullet heaven incremental asteroid miner game.
Space Trash Scavenger
Grab your jetpack and explore procedural asteroid fields, derelict spaceships and abandoned outposts. Build and automate your Space Rig to process scavenged trash. Craft, trade and fight your way home in this interstellar, open-world survival sandbox.
Moon Mystery
The Moon's haunted - and when an astronaut loses contact with Earth, the adventure begins in full. Fill up your oxygen, load up the guns, and set out on an interstellar FPS adventure across the stars, filled with puzzles, fights, exploration, and strange secrets of the universe.
Eden Crafters
Embark on a journey of survival, crafting, and automation in Eden Crafters, a solo and co-op open-world game that challenges you to turn a hostile planet into a habitable haven for humanity. Temper the climate, create a breathable atmosphere, and turn toxic lakes into water: shape a new world!
Starship Troopers: Extermination
Starship Troopers: Extermination is a 16-player co-op FPS that puts you on the far-off frontlines of an all-out battle against the Bugs! Squad up, grab your rifle, and do your part as an elite Deep Space Vanguard Trooper to take back planets from the Arachnid threat!
Finn Dorset's Institute For Livestock Replication
An animated incremental game about cloning livestock. Make as many moon sheep as you can. Research technology, upgrade your operation and become a clone farm billionaire!
Endoparasitic 2
Three limbs ripped off, infected with a deadly parasite, you must survive. Drag yourself through the hallways of an infested arcship, fight off twisted eldritch creatures, craft vaccines and ammunition, and escape to civilization.
Breachway
Explore the galaxy in this deckbuilding, sci-fi roguelike where ship upgrades and crew management are key to your survival. Optimize resource generation, engage in intense turn-based battles, and take on ever-growing threats as you seek out The Signal.
Mouthwashing
The five crew members of the Tulpar are stranded in the empty reaches of space, shrouded in perpetual sunset. God is not watching.
Kepler-2100
Kepler-2100 is a space fantasy strategy war game
Star Survivor
Star Survivor is a space-themed survival game that blends intense deckbuilding strategy. Pilot humanity's last spaceship through the vast galaxy, Unlock powerful weapon combos, collect card modules, and craft unique builds. As the enemy swarms grow denser, will you be the last one standing?
Machinika: Atlas
Machinika: Atlas is an indie puzzle game and is the direct sequel to Machinika: Museum, you play as a museum researcher who just land on Atlas. Will you unravel the mysteries of the alien vessel? Solve cryptic puzzles to find out what happened!
Drill Core
Corporate greed meets strategic planet-mining in Drill Core! Drill to the heart of planets while managing workers, researching cutting-edge tech, and fortifying against alien attacks. Will you prioritize efficiency and risk your workers' safety, or focus on defense for survival?
Warhammer 40,000: Space Marine 2
Embody the superhuman skill and brutality of a Space Marine. Unleash deadly abilities and devastating weaponry to obliterate the relentless Tyranid swarms. Defend the Imperium in spectacular third-person action in solo or multiplayer modes.
Star Trucker
Haul cargo, trade salvage and keep your space suit close as you search for fame and fortune among the stars in a game that puts an interstellar twist on the truck sim genre.
Starcom: Unknown Space
Starcom: Unknown Space is an action RPG of space exploration and adventure. Build your own starship while discovering an epic story in a universe of strange mysteries, alien factions and uncharted worlds.
Sins of a Solar Empire II
Battle for galactic dominance in this real-time 4X strategy game with unrivaled scale! You’ll explore, expand, exploit, and exterminate through military force, diplomacy, trade, culture, influence, and other underhanded tactics.
Most played space games on Steam
Take a look at the top space games that are currently attracting the largest player bases on the Steam platform, as of June 14th 2025.
1. Stellaris
Explore a galaxy full of wonders in this sci-fi grand strategy game from Paradox Development Studios. Interact with diverse alien races, discover strange new worlds with unexpected events and expand the reach of your empire. Each new adventure holds almost limitless possibilities. Stellaris is a space, grand strategy and strategy game developed by Paradox Development Studio and published by Paradox Interactive. Released on May 09th 2016 has received 185,433 reviews of which 159,527 were positive and 25,906 were negative resulting in a rating of 8.5 out of 10. The game has hit the top spot as the #1 most played space game, thanks to its 13,840 peak concurrent players over the last day.
8.5
159,527
25,906
13,840
players
2. No Man's Sky
No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe. No Man's Sky is a open world, open world survival craft and space game developed and published by Hello Games. Released on August 12th 2016 has received 352,858 reviews of which 293,332 were positive and 59,526 were negative resulting in a rating of 8.2 out of 10. While seeing 12,153 players online at once in the last 24 hours, this game is currently ranked #2 among space games based on player count.
8.2
293,332
59,526
12,153
players
3. Among Us
An online and local party game of teamwork and betrayal for 4-15 players...in space! Among Us is a multiplayer, social deduction and online co-op game developed and published by Innersloth. Released on November 16th 2018 has received 700,785 reviews of which 643,681 were positive and 57,104 were negative resulting in an impressive rating of 9.1 out of 10. While seeing 5,033 players online at once in the last 24 hours, this game is currently ranked #3 among space games based on player count.
9.1
643,681
57,104
5,033
players
4. Elite Dangerous
Take control of your own starship in a cutthroat galaxy. Elite Dangerous is the definitive massively multiplayer space epic. Elite Dangerous is a space sim, space and open world game developed and published by Frontier Developments. Released on April 02nd 2015 has received 100,024 reviews of which 77,388 were positive and 22,636 were negative resulting in a rating of 7.7 out of 10. With 4,502 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played space games.
7.7
77,388
22,636
4,502
players
5. Space Engineers
Space Engineers is a sandbox game about engineering, construction, exploration and survival in space and on planets. Players build space ships, space stations, planetary outposts of various sizes and uses, pilot ships and travel through space to explore planets and gather resources to survive. Space Engineers is a space, sandbox and building game developed and published by Keen Software House. Released on February 28th 2019 has received 132,347 reviews of which 117,204 were positive and 15,143 were negative resulting in a rating of 8.8 out of 10. With 4,375 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played space games.
8.8
117,204
15,143
4,375
players
6. EVE Online
EVE Online is a free-to-play community driven space MMO where players can choose their own path from countless different options. Experience space exploration, immense PvP and PvE battles, mining, industry and a thriving player economy in an ever-expanding sandbox. EVE Online is a space, free to play and massively multiplayer game developed and published by CCP. Released on December 15th 2010 has received 36,388 reviews of which 26,813 were positive and 9,575 were negative resulting in a rating of 7.3 out of 10. With 4,138 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played space games.
7.3
26,813
9,575
4,138
players
7. Unnamed Space Idle
Destroy endless waves of alien ships that have all but wiped out humanity in this long form, unfolding, sci-fi idle game. Customize your ship with different weapons and defenses to defeat specific enemy types and utilize a ton of different systems to increase your overall power. Unnamed Space Idle is a idler, casual and free to play game developed by Sylv and published by Jdog Corp. Released on July 27th 2023 has received 2,894 reviews of which 2,691 were positive and 203 were negative resulting in a rating of 8.9 out of 10. With 3,938 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played space games.
8.9
2,691
203
3,938
players
8. STAR WARS™ Empire at War - Gold Pack
Command or corrupt an entire galaxy in the definitive Star Wars strategy collection. It is a time of galactic civil war. Will you take up the reins of the Rebellion, assume control of the Empire, or rule the Star Wars Underworld? STAR WARS™ Empire at War - Gold Pack is a strategy, rts and space game developed by Petroglyph and published by LucasArts, Lucasfilm and Disney. Released on May 25th 2010 has received 39,435 reviews of which 38,503 were positive and 932 were negative resulting in an impressive rating of 9.6 out of 10. With 2,809 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played space games.
9.6
38,503
932
2,809
players
9. X4: Foundations
Thrilling space battles meet deep strategy. X4 invites you to explore, fight, trade, and build an empire in a dynamic, fully simulated space sandbox, where every decision shapes your journey. Now featuring the 2025 flight model overhaul. X4: Foundations is a space sim, simulation and sandbox game developed and published by Egosoft. Released on November 30th 2018 has received 23,847 reviews of which 18,951 were positive and 4,896 were negative resulting in a rating of 7.8 out of 10. With 2,234 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played space games.
7.8
18,951
4,896
2,234
players
10. Kerbal Space Program
In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics. Kerbal Space Program is a space, simulation and sandbox game developed by Squad and published by Private Division. Released on April 27th 2015 has received 127,162 reviews of which 121,084 were positive and 6,078 were negative resulting in an impressive rating of 9.4 out of 10. With 1,999 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played space games.
9.4
121,084
6,078
1,999
players
Best deals on space games on Steam
Discover fantastic savings with the best discounts on a variety of space games available on Steam right now, updated on June 14th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted space games.
1. EarthX
EarthX is a rocket company management game. Go from launching small rockets on Earth to eventually building a colony on Mars. Create your own Internet constellation, develop new technologies, supply the International Space Station and terraform Mars! EarthX is a simulation, indie and strategy game developed by Denis and Ry and published by Mesote Games. Released on July 12th 2023 has received 875 reviews of which 769 were positive and 106 were negative resulting in a rating of 8.3 out of 10. Featuring a massive 99% discount, this game currently holds the #1 spot in the best deals for space category.
8.3
769
106
-99%
19.99€
0.29€
2. Battlestar Galactica Deadlock
In Battlestar Galactica Deadlock™ you’ll take command of the Colonial Fleet in defense of the Twelve Colonies during the First Cylon War. Lead many different types of ships in this 3D tactical game. Every decision counts, your strategy will be vital – can you ensure mankind’s survival? Battlestar Galactica Deadlock is a strategy, space and sci-fi game developed by Black Lab Games and published by Slitherine Ltd.. Released on August 31st 2017 has received 3,460 reviews of which 2,906 were positive and 554 were negative resulting in a rating of 8.1 out of 10. Thanks to its incredible 99% discount, this game is now the #2 best deal in space games.
8.1
2,906
554
-99%
38.99€
0.44€
3. Interstellar Space: Genesis
Interstellar Space: Genesis is a turn-based space 4X strategy game in which you attempt to build a thriving galactic empire. Discover mysteries among the stars, colonize worlds, and engage enemies in tactical turn-based combat on your journey to becoming the ruler of the galaxy! Interstellar Space: Genesis is a strategy, indie and 4x game developed and published by Praxis Games. Released on July 25th 2019 has received 772 reviews of which 648 were positive and 124 were negative resulting in a rating of 7.9 out of 10. Thanks to its incredible 99% discount, this game is now the #3 best deal in space games.
7.9
648
124
-99%
27.99€
0.45€
4. InfraSpace
Create an extrasolar efficiency utopia from scratch! In this sci-fi city builder you need to start mining operations, plan production, and lay down transportation routes to ensure a smooth supply chain. InfraSpace is a city builder, automation and transportation game developed and published by Dionic Software. Released on September 22nd 2023 has received 1,667 reviews of which 1,333 were positive and 334 were negative resulting in a rating of 7.7 out of 10. Currently offered at a significant 99% discount, this title has earned the #4 position in the best deals for space games.
7.7
1,333
334
-99%
19.99€
0.38€
5. Duke of Alpha Centauri
Duke of Alpha Centuri is a space shooter with amazing graphics. The main goal of our game is to have a lot of fun while blowing up hordes of different types of enemies. Engage in boss fights, upgrade your ship and ship systems until you are able to show off in an endless mode. Duke of Alpha Centauri is a action, casual and indie game developed by EGAMER and published by SA Industry. Released on December 28th 2016 has received 526 reviews of which 407 were positive and 119 were negative resulting in a rating of 7.3 out of 10. Currently offered at a significant 99% discount, this title has earned the #5 position in the best deals for space games.
7.3
407
119
-99%
29.99€
0.39€
6. Starpoint Gemini Warlords
Strategy from the front lines! Starpoint Gemini Warlords combines 3rd person capital spaceship combat with 4X strategy and RPG gameplay elements. Build mighty war fleets and send them into battle or lead them into combat yourself. Become the Warlord and conquer the Gemini system! Starpoint Gemini Warlords is a space, rpg and open world game developed and published by Little Green Men Games. Released on May 23rd 2017 has received 3,532 reviews of which 2,593 were positive and 939 were negative resulting in a rating of 7.1 out of 10. Currently offered at a significant 99% discount, this title has earned the #6 position in the best deals for space games.
7.1
2,593
939
-99%
31.99€
0.47€
7. Distant Worlds 2
Distant Worlds 2 is a vast, pausable real-time 4X space strategy game. Distant Worlds 2 is a strategy, simulation and 4x game developed by CodeForce and published by Slitherine Ltd.. Released on March 10th 2022 has received 3,237 reviews of which 2,304 were positive and 933 were negative resulting in a rating of 6.9 out of 10. Currently offered at a significant 99% discount, this title has earned the #7 position in the best deals for space games.
6.9
2,304
933
-99%
48.99€
0.37€
8. This Means Warp
It’s co-op space survival fun, Jim, but not as we know it. This Means Warp is an intense spaceship management roguelite experience for 1-4 players. Explore a procedurally generated universe, upgrade your ship, battle dangerous enemies and adapt your strategies to survive in a hostile galaxy. This Means Warp is a survival, online co-op and space game developed by Outlier and published by Jagex Ltd. Released on May 04th 2023 has received 627 reviews of which 447 were positive and 180 were negative resulting in a rating of 6.8 out of 10. Currently offered at a significant 99% discount, this title has earned the #8 position in the best deals for space games.
6.8
447
180
-99%
19.50€
0.38€
9. Starpoint Gemini 2
Captain your own space ship and roam the galaxy in 3D in this tactical space simulator with tons of RPG depth ! Space has never looked so inviting - but images can betray...It has been two years since the end of the second Gemini war, the situation in the wartorn system is further from resolution than ever. Starpoint Gemini 2 is a space, simulation and rpg game developed and published by Little Green Men Games. Released on September 26th 2014 has received 4,093 reviews of which 2,843 were positive and 1,250 were negative resulting in a rating of 6.8 out of 10. Currently offered at a significant 99% discount, this title has earned the #9 position in the best deals for space games.
6.8
2,843
1,250
-99%
31.99€
0.60€
10. BattleGroupVR
BattleGroupVR is a first person real-time space strategy where you lead a fleet of powerful warships into battle from the bridge of your own flagship. Assemble your fleet, upgrade your load-outs, train your captains, engage the enemy and secure the sector. Try not to go down with the ship. BattleGroupVR is a space sim, space and vr game developed and published by SpaceOwl Games. Released on July 31st 2023 has received 902 reviews of which 834 were positive and 68 were negative resulting in a rating of 8.7 out of 10. Currently offered at a significant 98% discount, this title has earned the #10 position in the best deals for space games.
8.7
834
68
-98%
20.99€
0.42€
Free space games on Steam
Check out this fantastic list of free-to-play space games you can enjoy on Steam right now, updated on June 14th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play space games.
1. EVE Online
EVE Online is a free-to-play community driven space MMO where players can choose their own path from countless different options. Experience space exploration, immense PvP and PvE battles, mining, industry and a thriving player economy in an ever-expanding sandbox. EVE Online is a space, free to play and massively multiplayer game developed and published by CCP. Released on December 15th 2010 has received 36,388 reviews of which 26,813 were positive and 9,575 were negative resulting in a rating of 7.3 out of 10. With 4,138 active players enjoying it for free, this strategy game has reached the #1 spot among the top free space games on Steam.
7.3
26,813
9,575
4,138
players
2. Unnamed Space Idle
Destroy endless waves of alien ships that have all but wiped out humanity in this long form, unfolding, sci-fi idle game. Customize your ship with different weapons and defenses to defeat specific enemy types and utilize a ton of different systems to increase your overall power. Unnamed Space Idle is a idler, casual and free to play game developed by Sylv and published by Jdog Corp. Released on July 27th 2023 has received 2,894 reviews of which 2,691 were positive and 203 were negative resulting in a rating of 8.9 out of 10. Thanks to its free to play tag and a daily player base of 3,938, this space game has secured the #2 spot in the ranking of free space games on Steam.
8.9
2,691
203
3,938
players
3. Star Trek Online
In Star Trek Online, the Star Trek universe appears for the first time on a truly massive scale. Players take the captain's chair as they command their own starship and crew. Explore strange new worlds, seek out new life and new civilizations, and boldly go where no one has gone before. Star Trek Online is a free to play, sci-fi and massively multiplayer game developed by Cryptic Studios and published by Arc Games. Released on January 31st 2012 has received 20,143 reviews of which 15,937 were positive and 4,206 were negative resulting in a rating of 7.8 out of 10. Thanks to its free to play tag and a daily player base of 1,035, this space game has secured the #3 spot in the ranking of free space games on Steam.
7.8
15,937
4,206
1,035
players
4. Super Sus
Welcome to join the multiplayer social deduction game - Super Sus! Engage in intense gameplay with global players, as you strategize to safeguard your spaceship from the cunning Impostors determined to sabotage the mission and eliminate everyone aboard! Super Sus is a multiplayer, online co-op and social deduction game developed and published by GIANT INTERACTIVE HK LIMITED. Released on July 30th 2024 has received 1,263 reviews of which 871 were positive and 392 were negative resulting in a rating of 6.7 out of 10. Attracting a solid base of 211 players due to its free access, this strategy game has achieved the #4 position in the best free space games on Steam.
6.7
871
392
211
players
5. Star Trek Timelines
Explore the Final Frontier in the ultimate sci-fi strategy RPG, Star Trek Timelines! Join Starfleet and overcome challenges as you boldly go where no game has gone before – across the entire history of Star Trek. Star Trek Timelines is a free to play, strategy and space game developed and published by Tilting Point. Released on July 12th 2017 has received 1,430 reviews of which 938 were positive and 492 were negative resulting in a rating of 6.4 out of 10. Attracting a solid base of 170 players due to its free access, this strategy game has achieved the #5 position in the best free space games on Steam.
6.4
938
492
170
players
6. Pixel Starships
Pixel Starships is an FTL-style online sci-fi strategy builder and management game with a competitive PVP tournament. Set in the retro galaxy, your role is to explore space, meet aliens, and develop your ship, crew and AI. The game contains deep strategic and 4x elements. PSS is community-driven. Pixel Starships is a sci-fi, space and strategy game developed and published by SavySoda. Released on May 23rd 2023 has received 2,732 reviews of which 2,008 were positive and 724 were negative resulting in a rating of 7.1 out of 10. Attracting a solid base of 136 players due to its free access, this strategy game has achieved the #6 position in the best free space games on Steam.
7.1
2,008
724
136
players
7. Endless Sky
Endless Sky is a 2D space trading and combat game inspired by the classic Escape Velocity series. Work your way up from a relatively wimpy shuttle, cargo ship, or fighter, to a highly upgraded and customized flagship or to a massive fleet of warships or freighters. Endless Sky is a space, free to play and open world game developed and published by Michael Zahniser. Released on October 30th 2015 has received 6,651 reviews of which 6,141 were positive and 510 were negative resulting in a rating of 8.9 out of 10. Attracting a solid base of 132 players due to its free access, this strategy game has achieved the #7 position in the best free space games on Steam.
8.9
6,141
510
132
players
8. Hades' Star
A unique space strategy game where thousands of players participate in one shared galaxy. Hades' Star is a free to play, space and strategy game developed and published by Parallel Space Inc. Released on February 27th 2019 has received 2,577 reviews of which 1,874 were positive and 703 were negative resulting in a rating of 7.1 out of 10. Attracting a solid base of 108 players due to its free access, this strategy game has achieved the #8 position in the best free space games on Steam.
7.1
1,874
703
108
players
9. Planet S
Planet S is a real-time strategy game where your goal is to colonize multiple planets in a solar system to advance your civilization, build a city and supply it to grow your faction. Planet S is a strategy, city builder and multiplayer game developed and published by Glimmerlight Games. Released on October 28th 2023 has received 2,603 reviews of which 2,387 were positive and 216 were negative resulting in a rating of 8.8 out of 10. The game currently holds the #9 spot among the most played free space games on Steam.
8.8
2,387
216
25
players
10. Istrolid
In Istrolid you design your own unique spaceships from a large number of parts to fit your strategy and play style. With no set units or factions you are free to create a fleet where each ship has its own balanced strengths and weaknesses, from basic fighters and bombers to hulking battleships and speedy destroyers. Istrolid is a free to play, building and strategy game developed and published by treeform. Released on May 06th 2016 has received 2,662 reviews of which 2,325 were positive and 337 were negative resulting in a rating of 8.4 out of 10. The game currently holds the #10 spot among the most played free space games on Steam.
8.4
2,325
337
9
players